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Swiss Residential Demand for Electricity by Time-of-Use: An Application of the Almost Ideal Demand System

Massimo Filippini

Year: 1995
Volume: Volume16
Number: Number 1
DOI: 10.5547/ISSN0195-6574-EJ-Vol16-No1-2
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Abstract:
This study examines the residential demand for electricity by time-of-use in Switzerland. For this purpose, an almost ideal demand system (AIDS) model for peak and off-peak electricity consumption is estimated using panel data coveting the years 1987 to 1990 and 21 cities. The empirical analysis characterizes the Swiss residential electricity market as rather price responsive. The own partial price elasticities are estimated to range between -1.29 and -1.50 during the peak period and between -2.36 and -2.42 during the off-peak period. These elasticities show a high responsiveness of electricity consumption to changes in peak and off-peak prices. Moreover, the positive values of the partial cross price elasticities and substitution elasticities show that peak and offpeak electricity are substitutes.



Economies of Scale and Scope in Multi-Utilities

Mehdi Farsi, Aurelio Fetz and Massimo Filippini

Year: 2008
Volume: Volume 29
Number: Number 4
DOI: 10.5547/ISSN0195-6574-EJ-Vol29-No4-6
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Abstract:
This paper explores the economies of scale and scope in the electricity, gas and water utilities. These issues have a crucial importance in the actual policy debates about unbundling the integrated utilities into separate entities, a policy which has often been supported by the ongoing reforms in the deregulation of network industries. This paper argues that the potential improvements in efficiency through unbundling should be assessed against the loss of scope economies. Several econometric specifications including a random-coefficient model are used to estimate a cost function for a sample of utilities distributing electricity, gas and/or water to the Swiss population. The estimates of scale and scope economies are compared across different models and the effect of heterogeneity among companies are explored. While indicating considerable scope and scale economies overall, the results suggest a significant variation in scope economies across companies due to unobserved heterogeneity.



Cross-border Effects of Capacity Remuneration Mechanisms: The Swiss Case

Florian Zimmermann, Andreas Bublitz, Dogan Keles, and Wolf Fichtner

Year: 2021
Volume: Volume 42
Number: Number 2
DOI: 10.5547/01956574.42.2.fzim
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Abstract:
In this article, cross-border effects of different market design options are analyzed using Switzerland, which is strongly interconnected to larger neighboring markets, as a case study. An investigation is conducted with an agent-based model where in one scenario, all market designs are represented according to the current legislation, and in another, energy-only markets (EOM) are assumed in all considered countries. The results show that wholesale electricity prices are highly dependent on the chosen market design and in the annual average are up to 27% higher in the EOM scenario. Due to expected larger interconnector capacities, this increase is evident in all simulated markets. Furthermore, the results indicate that the planned market design changes in the neighboring countries decrease investments in Switzerland. However, generation adequacy is still guaranteed due to the high Swiss hydropower storage capacity. Our results suggest that, under the current circumstances, a domestic mechanism in Switzerland is not required.





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